[time-nuts] locking oscillators - an increase in power and/or stability ?

Dr. David Kirkby (Kirkby Microwave Ltd) drkirkby at kirkbymicrowave.co.uk
Wed Oct 8 19:52:32 EDT 2014


On 9 Oct 2014 00:26, "paul swed" <paulswedb at gmail.com> wrote:
>
> Depends on your detector is it a Voltage or power. 3DBM or 6 DBV are the
> same.
> Paul
> WB8TSL

You are mistaken.  A 3 dB increase in signal level is a 3 dB increase -
there's no need to say if power or voltage.

The formula for computing an increase is going from power P2 from P1 is.

10 log (P2/P1)

or if voltage

20 log (V2/V1).

If the voltage rises by a factor of 10, the power rises by a factor of 100,
since power is V^2/R.

10 log (100) = 20 dB

is the same as

20 log (10) = 20 dB.

Dave

Dave.



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